Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 lepidolite It often contain layers and

It often contain layers and nodules of red chert

These small branching columnar stromatolites are from the “Mount Leake Sandstone”

CLA227   A slab

From the mid-west region of Western Australia near the small gold mining centre of Payne's Find

Dimensions approximately 150mm x 110mm x 10mm thick

Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 lepidolite It often contain layers andASP139. Fossil stromatolite slab, polished on one side. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Unusual colouration caused by natural iron oxide weathering. Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Approx. 150mm x 85mm, 7mm thick. It weighs 175 grams.